1963 Steve Allen & Johnny Carson try to phone scam Jack Paar

epaddon writes, "What may be the only time the first three hosts of the Tonight Show were on the same program together in their prime period. Johnny Carson, already the new host of "Tonight" appears on Steve Allen's Westinghouse talk show (which ran from 1963-1965 in syndication) and they decide to do a "Funny Fone Call" prank on Jack Paar (who at the time was still hosting a weekly prime time talk show on NBC after stepping down as "Tonight" host)."

Steve had been making the "Funny Fone Calls" a routine feature and even put out an LP devoted to them.